ES518069A0 - PROCEDURE TO MANUFACTURE COOKED REFRACTORY BRICKS FOR GAS SWEEPING, FOR THE INTRODUCTION OF GASES OR STEAM IN METAL MUSCLES OF MELTING. - Google Patents

PROCEDURE TO MANUFACTURE COOKED REFRACTORY BRICKS FOR GAS SWEEPING, FOR THE INTRODUCTION OF GASES OR STEAM IN METAL MUSCLES OF MELTING.

Info

Publication number
ES518069A0
ES518069A0 ES518069A ES518069A ES518069A0 ES 518069 A0 ES518069 A0 ES 518069A0 ES 518069 A ES518069 A ES 518069A ES 518069 A ES518069 A ES 518069A ES 518069 A0 ES518069 A0 ES 518069A0
Authority
ES
Spain
Prior art keywords
gases
introduction
weight
plugs
steam
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
ES518069A
Other languages
Spanish (es)
Other versions
ES8402246A1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Veitscher Magnesitwerke AG
Original Assignee
Veitscher Magnesitwerke AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Veitscher Magnesitwerke AG filed Critical Veitscher Magnesitwerke AG
Publication of ES8402246A1 publication Critical patent/ES8402246A1/en
Publication of ES518069A0 publication Critical patent/ES518069A0/en
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
    • B22D1/002—Treatment with gases
    • B22D1/005—Injection assemblies therefor
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/03—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite
    • C04B35/04—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite based on magnesium oxide
    • C04B35/043—Refractories from grain sized mixtures
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/02—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding chemical blowing agents
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/0087—Uses not provided for elsewhere in C04B2111/00 for metallurgical applications
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/40—Mortars, concrete or artificial stone characterised by specific physical values for gas flow through the material

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Processing Of Solid Wastes (AREA)
  • Detergent Compositions (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Catalysts (AREA)

Abstract

1. Process for manufacturing fired refractory porous plugs for rinsing by gas for the introduction of gases or vapours into metal melts, comprised of porous magnesia material having a permeability of at least 500 nPm and an open porosity of at least 20% by volume, by press-shaping a mixture based on sintered magnesia which is substantially free of finest grains up to 0.5 mm, characterised in that a mixture consisting of 87 to 95% by weight of sintered magnesia having a grain size from 0.5 to 3 mm, preferably from 1 to 2 mm, and 5 to 13% by weight of magnesium carbonate or calcium carbonate as gas delivering substance, the sintered magnesia and the gas delivering substance being poor in iron having a content of less than 0.8% by weight of Fe2 O3 , calculated free of ignition loss, blended with a temporary binder is shaped into plugs under a pressure of 50 to 100 N/mm**2 , preferably about 60 N/mm**2 , and these plugs are fired at a temperature above 1700 degrees C, preferably above 1800 degrees C.
ES518069A 1981-12-11 1982-12-10 PROCEDURE TO MANUFACTURE COOKED REFRACTORY BRICKS FOR GAS SWEEPING, FOR THE INTRODUCTION OF GASES OR STEAM IN METAL MUSCLES OF MELTING. Granted ES518069A0 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0532181A AT374164B (en) 1981-12-11 1981-12-11 METHOD FOR PRODUCING BURNED FIREPROOF GAS PULSE STONES

Publications (2)

Publication Number Publication Date
ES8402246A1 ES8402246A1 (en) 1984-01-16
ES518069A0 true ES518069A0 (en) 1984-01-16

Family

ID=3574490

Family Applications (1)

Application Number Title Priority Date Filing Date
ES518069A Granted ES518069A0 (en) 1981-12-11 1982-12-10 PROCEDURE TO MANUFACTURE COOKED REFRACTORY BRICKS FOR GAS SWEEPING, FOR THE INTRODUCTION OF GASES OR STEAM IN METAL MUSCLES OF MELTING.

Country Status (5)

Country Link
EP (1) EP0081794B1 (en)
AT (2) AT374164B (en)
BR (1) BR8207191A (en)
DE (1) DE3269732D1 (en)
ES (1) ES518069A0 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4040458A1 (en) * 1990-12-18 1992-06-25 Aken Magnesitwerk Gmbh POROESES, FIRE-RESISTANT SPOOL ELEMENT
EP1260289A1 (en) * 2001-05-21 2002-11-27 University of Patras Porous plug for treatment of molten metals
CN103196811B (en) * 2013-04-11 2015-04-15 莱芜钢铁集团有限公司 Online detecting method and device of air permeability of steel ladle
ES2543321T3 (en) 2013-06-10 2015-08-18 Refractory Intellectual Property Gmbh & Co. Kg Mixture for manufacturing an unconformed ceramic refractory product, process for manufacturing a cooked refractory ceramic product, cooked refractory ceramic product and use of an unconformed ceramic refractory product
DE102017121452B9 (en) * 2017-09-15 2024-04-04 Refratechnik Holding Gmbh Process for producing a porous sintered magnesia, batch for producing a coarse ceramic refractory product with a grain of sintered magnesia, use of the batch for producing the product and process for producing the product
CN108329017B (en) * 2018-03-19 2021-01-19 营口市瑞福来耐火材料有限公司 Isometric spherical magnesium material, preparation method thereof and application thereof in producing dispersed magnesium air-permeable plug
CN108358618B (en) * 2018-05-23 2022-04-19 洛阳轩石新材料科技有限公司 Method for manufacturing combined conical dispersion air brick

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT228696B (en) * 1960-09-13 1963-07-25 Veitscher Magnesitwerke Ag Process for the production of fired, in particular basic to neutral, refractory moldings of high porosity
GB1179557A (en) * 1966-10-19 1970-01-28 Diddier Werke Ag Improvement in Permeable Refractory Products
JPS5016368B1 (en) * 1966-10-24 1975-06-12
JPS5130562B2 (en) * 1972-10-25 1976-09-01
JPS5096606A (en) * 1973-12-27 1975-07-31

Also Published As

Publication number Publication date
ATE18388T1 (en) 1986-03-15
ATA532181A (en) 1983-08-15
ES8402246A1 (en) 1984-01-16
EP0081794B1 (en) 1986-03-05
EP0081794A1 (en) 1983-06-22
BR8207191A (en) 1983-10-11
DE3269732D1 (en) 1986-04-10
AT374164B (en) 1984-03-26

Similar Documents

Publication Publication Date Title
JPS55107749A (en) Carbon-containing fire brick
ES518069A0 (en) PROCEDURE TO MANUFACTURE COOKED REFRACTORY BRICKS FOR GAS SWEEPING, FOR THE INTRODUCTION OF GASES OR STEAM IN METAL MUSCLES OF MELTING.
KR930021567A (en) Electric Arc Furnace Dust as Brick Raw Material
EP0351450A3 (en) Radiowave absorber and its manufacturing process
SU979297A1 (en) Ceramic composition
DE2232719A1 (en) Refractory stones - contg refractory oxide and/or carbide grains and silicon carbide binder
Ndaliman Refractory properties of termite hills under varied proportions of additives
JPS5611136A (en) Heat insulating plate for upper surface of feeder head
JPS55154534A (en) Iron ore porous pellet and its manufacture
ES8106874A1 (en) Carbon-containing and uncarbonized sinter magnesia refractories
ATE19769T1 (en) HEAT-INSULATING CERAMIC MOLDING AND PROCESS FOR ITS MANUFACTURE.
SU661020A1 (en) Refractory compound for stopping up blast furnace tapholes
JPS55115917A (en) Wall structure of converter
JPS5633437A (en) Manufacture of porous iron ore pellet
SU601264A1 (en) Refractory compound
Gushchin Clinker-based refractories with varying CaO content--properties
SU779336A1 (en) Refractory packing composition
IE830678L (en) Manufacturing refractory magnesia-chromium products.
JPS5659577A (en) Molten metal vessel such as ladle
SU889645A1 (en) Reffractory composition
SU802236A1 (en) Ceramic mass
DE3233552C1 (en) Lightweight building material based on fly ashes
BERTOLANI QUALITY CONTROL OF CERAMIC RAW MATERIALS
RUDOLPH A Study of the Sintering of an Industrial Magnesia Powder for Gunning Processes
SU1178735A1 (en) Charge for manufacturing refractory articles

Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19981103